when i go on vacation i use istumbler to see if there are any open networks...

one of my favorite stories when i was in Belgium. they charged $10 a day for internet access, or i could go downstairs to the cybercafe and pay to use it there. me, not wanting to do either, noticed that since i was on the top floor of the hotel, i had access to the roof. so i climbed out the window, used the fire escape and climbed up and walked around the roof to see who had open access. a kind person left their wireless open and i used it. thank you "philip". also, this is the view i had while surfing the net..

KisMAC will allow you to crack WEP encrypted networks but there are a couple catches. First off the Apple Airport cards don't support packet re-injection. This is required to get enough unique packets to crack the WEP key (think it requires about 130k unique IV packets). You can get a cheap PCMCIA card if you have an older PowerBook (I use a Netgear MA401 and it works fine). Make sure it has the chipset required to work with the drivers they've written for it.

Next to be able to get enough unique IV packets there has to be someone on the network you are trying to crack using 802.11b. Chances of that happening are less and less now days as it's fairly old.

The newest version of KisMAC does support scanning with Intel Mac Airport cards in active mode which is nice for finding wireless networks but can't crack them. There are a number of short videos on YouTube showing how to crack WEP using KisMAC.

The newest version of KisMAC does support scanning with Intel Mac Airport cards in active mode which is nice for finding wireless networks but can't crack them. There are a number of short videos on YouTube showing how to crack WEP using KisMAC.

Click to expand...

the old version works fine for scanning on ppc macs as well. but i still believe you need extra hardwared to packet sniff on all macs.